In Missouri, which Obama narrowly lost to McCain, Democratic strategist Steve Glorioso said hardcore base voters were as enthusiastic as ever for Obama but that there was a sense of disappointment about him among less committed Democrats and independents.

“People are scared,” Glorioso said. “This is the worst economic time anyone under the age of 80 has ever experienced, and you can’t discount people being afraid. Now that we are in July, the fear is turning to disappointment that the president hasn’t fixed everything yet. I don’t know why they thought he could change everything by now, but some did.”…

In Michigan, where the near-collapse of the auto industry has driven the unemployment rate to 14.1 percent, the nation’s worst, the state’s Democratic chairman, Mark Brewer, said support for Obama among Democrats has remained strong.

“People are very worried and concerned, I don’t want to dispute that,” Brewer said.